The design features include:

3/4-10 x 12 Grade 5 Hex Cap Screw Zinc Plated

7/32 Heavy Duty Jobber Drill Bit

5/16 x 12 ITM SDS Plus eVolution™ Hammer Drill Bit

5/16-18 x 5 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (250) 1 1/4-7 Flat Socket Cap Screws Alloy The design features include:5 16 18 x 5 1 2 Grade 8 Hex Cap Screw Plain Domestic USA (250). Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on diameters 1